Sebastian Kennerknecht / American Black Vulture (Coragyps atratus) flying near skyscrapers, Ancon Hill, Panama City, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), bastimentos morph, Bastimentos Island, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and three month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and three month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) biologist, Rebecca Cliffe, taking hair samples, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) climbing, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus), Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) swimming in mangrove forest, Isla Escudo de Veraguas, Panama

Christian Ziegler / Bucket Orchid (Coryanthes panamensis) flower attracting bee for pollination through scent, Panama

Christian Ziegler / Greater Bulldog Bat (Noctilio leporinus) sequence catching a fish from Lake Gatun, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

James Christensen / Almirante Robber Frog (Craugastor talamancae), Colon, Panama

Thomas Marent / Banana Spider (Nephila clavipes) female and smaller male, Bocas del Toro, Panama

Mark Moffett / Leafcutter Ant (Atta cephalotes) workers carrying leaves back to nest, Barro Colorado Island, Panama

Mark Moffett / Strawberry Poison Dart Frog (Oophaga pumilio) group showing color variation from different islands, Bocas del Toro, Panama

Paul Bertner / Mossy Stick Insect (Trychopeplus laciniatus), Chiriqui, Panama

Paul Bertner / Mossy Stick Insect (Trychopeplus laciniatus) female, Chiriqui, Panama

Paul Bertner / Mossy Stick Insect (Trychopeplus laciniatus) female camouflaged on moss, Chiriqui, Panama

Sebastian Kennerknecht / Broad-billed Motmot (Electron platyrhynchum), Panama Rainforest Discovery Center, Gamboa, Panama

Sebastian Kennerknecht / Northern Tamandua (Tamandua mexicana) in tree, Pipeline Road, Gamboa, Panama

Sean Crane / Canal Zone Treefrog (Hypsiboas rufitelus), El Valle, Panama

Sean Crane / Brown-throated Three-toed Sloth (Bradypus variegatus) in rainforest tree, El Valle, Panama

Sean Crane / Menapis Tigerwing (Mechanitis menapis) butterfly, Panama

Sean Crane / Diasia Clearwing (Ithomia diasia) butterfly, El Valle, Panama

Sean Crane / Orange-bellied Trogon (Trogon aurantiiventris) female, El Valle, Panama

Sean Crane / Orange-bellied Trogon (Trogon aurantiiventris) male, El Valle, Panama

Sean Crane / Smooth Helmeted Iguana (Corytophanes cristatus), El Valle, Panama

Sean Crane / Mantled Howler Monkey (Alouatta palliata), Soberania National Park, Panama

Sean Crane / White-whiskered Puffbird (Malacoptila panamensis), Soberania National Park, Panama

Sean Crane / Blue-crowned Motmot (Momotus momota), Soberania National Park, Panama

Sean Crane / Panamanian Night Monkey (Aotus zonalis) in tree cavity, Soberania National Park, Panama

Sean Crane / Keel-billed Toucan (Ramphastos sulfuratus) in rainforest tree, Soberania National Park, Panama

Sean Crane / Palm Tanager (Thraupis palmarum), Soberania National Park, Panama

Sean Crane / Brown-throated Three-toed Sloth (Bradypus variegatus) sleeping, Soberania National Park, Panama

Sean Crane / Brown-throated Three-toed Sloth (Bradypus variegatus) sleeping, Soberania National Park, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), valiente morph, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), valiente morph, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), uyama morph, Uyama River, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), uyama morph, Uyama River, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), darklands morph, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), rambala morph, Chiriqui, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), rambala morph, Chiriqui, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), rambala morph, Chiriqui, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), rambala morph, Chiriqui, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), rambala morph, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), colon morph, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), cayo de agua morph, Cayo Agua Island, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), cayo de agua morph, Cayo Agua Island, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), bastimentos morph, Bastimentos Island, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), bastimentos morph, Bastimentos Island, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), bastimentos morph, Bastimentos Island, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), bastimentos morph, Bastimentos Island, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), chiriqui grande morph, Chiriqui, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), loma partida morph, Chiriqui, Panama

Paul Bertner / Mantid (Phyllovates sp) in rainforest, Chiriqui, Panama

Paul Bertner / Dead Leaf Katydid (Orophus tessellatus), Panama

Paul Bertner / True Bug (Antiteuchus sp) female guarding eggs against parasitoid wasps, Chiriqui, Panama

Paul Bertner / Strawberry Poison Dart Frog (Oophaga pumilio), bastimentos morph, male calling, Bastimentos Island, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) swimming in mangrove forest, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) swimming in mangrove forest, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) swimming in mangrove forest, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) biologist, Rebecca Cliffe, weighing adult, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus), Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) swimming in mangrove forest, Isla Escudo de Veraguas, Panama

James Christensen / Rusty Wandering Spider (Cupiennius getazi) female tending her egg sac, Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Jumping Spider (Corythalia opima), Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Garland Anole (Norops vittigerus), Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Wandering Spider (Ctenus sp) female, Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Rusty Wandering Spider (Cupiennius getazi) female eating a katydid, Sierra Llorona Lodge, Santa Rita Arriba, Panama

James Christensen / Fruhstorfer's Owl-Butterfly (Caligo oedipus) feeding on tree sap exuding from scratches made by an Ocelot (Leopardus pardalis), Soberania National Park, Gamboa, Panama

Roland Seitre / Midas Tamarin (Saguinus midas), breeding facilities at Zoologico del Istmo, Colon, Panama

Roland Seitre / Midas Tamarin (Saguinus midas), breeding facilities at Zoologico del Istmo, Colon, Panama

Roland Seitre / Geoffrey's Tamarin (Saguinus geoffroyi), Jacobo Lacs, breeding facilities of Zoologico del Istmo, Colon, Panama

Roland Seitre / Geoffrey's Tamarin (Saguinus geoffroyi), Jacobo Lacs, breeding facilities of Zoologico del Istmo, Colon, Panama

Roland Seitre / Geoffrey's Tamarin (Saguinus geoffroyi), Jacobo Lacs, breeding facilities of Zoologico del Istmo, Colon, Panama

Roland Seitre / Saddle-back Tamarin (Saguinus fuscicollis), breeding facilities of Zoologico del Istmo, Colon, Panama

Roland Seitre / Common Opossum (Didelphis marsupialis) mother and young, Panama City, Panama

Roland Seitre / Common Opossum (Didelphis marsupialis) mother who was paralysed by a dog bite is able to raise her young in captivity, Panama City, Panama

Cyril Ruoso / Slaty-tailed Trogon (Trogon massena), Barro Colorado Island, Panama

Cyril Ruoso / Short-tailed Crab (Potamocarcinus richmondi) in defensive posture, Barro Colorado Island, Panama

Cyril Ruoso / Peters' Tent-making Bat (Uroderma bilobatum) roosting under large leaf after making incisions causing leaf to bend and form tent, Barro Colorado Island, Panama

Cyril Ruoso / Crested Guan (Penelope purpurascens), Barro Colorado Island, Panama

Cyril Ruoso / Giant Green Anole (Anolis frenatus) on tree, Barro Colorado Island, Panama

Cyril Ruoso / Jesus Christ Lizard (Basiliscus basiliscus) on rock in water, Barro Colorado Island, Panama

Cyril Ruoso / Mantled Howler Monkey (Alouatta palliata) feeding on new plant growth, Barro Colorado Island, Panama

Cyril Ruoso / Mantled Howler Monkey (Alouatta palliata), Barro Colorado Island, Panama

Cyril Ruoso / Rhinoceros Beetle (Phileurus truncatus), Barro Colorado Island, Panama

Cyril Ruoso / Army Ant (Eciton hamatum) group making temporary nest by holding on to each other, Barro Colorado Island, Panama

Cyril Ruoso / Army Ant (Eciton hamatum) group making temporary nest by holding on to each other, Barro Colorado Island, Panama

Cyril Ruoso / Army Ant (Eciton hamatum) group making temporary nest by holding on to each other, Barro Colorado Island, Panama

Cyril Ruoso / Bullet Ant (Paraponera clavata), Barro Colorado Island, Panama

Cyril Ruoso / Tarantula (Theraphosidae), Barro Colorado Island, Panama